Coffee-machine.



S. STERNAU, J.-P. STEPPE & L. STRASSBURGER.

COFFEE MACHINE.

APPLIOATION 311.111) 001'. 21, 1903.

Patented Nov. 10, 1908.

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Attorneys.

UNITED STATES PATENT OFFICE.

SIGMUND STERNAU, JOHN P. STEPPE, AND LIONEL STRASSBURGER, OF NEW YORK, N. Y.,

ASSIGNORSTO S. STERNAU & 00., OF NEW YORK, N. Y., A FIRM. 1

COFFEE-MACHINE.

Specification of Letters Patent.

Patented Nov. 10, 1908.

Original application filed January 31, 1903, Serial No. H1360. Divided and this application filed October 21,

I 1903. Serial N0. 177,979.

To all whom it may concern:

Be it knownthat we, SIGMUND STERNAU, residing in the borough of Manhattan, city county, and State of New York, JOHN P. STnrrE, residing in the borough of Brooklyn, county of Kings, city and State of New York, and LIONEL STRASSBURGER, residing in the borough of Manhattan, city, county, and State of New York, all citizens of the United States,'have invented a certain new and useful Improvement in Coflee-Machines, of which the following-is a specification.

Our invention relates to improvements in collee machines of the type designed for the manufacture of drip coffee and arranged for the production of the beverage at the time of serving the same, and is a division of our application for'patentfiled January 3lst,'1903, Serial No. 141,260.

Our objects areto provide and produce a device of this kind which shall constitute an attractive and ornamental utensil having the following advantages First. The receptacle in which the'coffee is contained is entirelyseparate from the usual glass globe, so as to thereby facilitate cleaning and to also prevent the possibility of the grounds working down intothe main receptacle, as is likely to occur with devices of the kind wherein the coffee holder is not separate from the glass globe.

Second. The deflector whichspreads the hot water rising up through the central tube and distributes it over the coffee in the coffee-holder is permanently connected to the coffee holder, so that it will always beon hand, without any possibility of being lost. W'ith machines of the kind at present on the market, the deflector is a separate .disk, reinovably carried by the central tube, and in order that'the tube may be separated from the coffee-holder the deflector requires to be removed, so that the latter frequently becomes lost.

Third. The central tube is entirely open at its upper end, so that the boiling water rising up through the same from the superheated lower regions of the receptacle will be uniformly distributed in all directions over the coffee in the holder, so as to thereby not onl expedite the operation but to also more etlectively operate on the coffee itself. Vith the present machines, the central tube is pr sided near its upper end with a pluand the receptacle is provided near its bottom with a contracted neck, so that its outwardly flaring lower section can be reached only with difficulty and cleaned very ineffectively.

Preferably our improved coffee machine utilizes all these features of construction and arrangement, but it will be understood that a device is characteristic of our invention if it utilizes any one of these constructive details.

In order that the invention may be better understood, attention is directed to the accompanying drawing, forming part of this specification, and in which Figure 1 is, a longitudinal sectional view through our improved coffee machine of its preferred type, and Fig. 2 a section on the line 2-2 of Fig. 1, illustrating particularly the preferred form of lock between the receptacle and the stand.

In both of these views, corresponding parts are represented by the same numerals of,

reference. A

The stand is composed of the ring or annulus 1 having a horizontal top member 2,

three or more legs or standards 3, a lamp ring 4, and arms 5 connecting the lamp ring with the legs or standards. ,The lamp ring 5 carries a lamp of any suitable construction. In the drawing we illustrate an alcohol lamp 6 of a modern type. The horizontal portion 2 of the ring or annulus 1 of the stand is provided with strucleup ribs 7, on which the receptacle 8 is seated, so that an air space will be formed between the receptacle and ring through which air may circulate to pre vent the stand from becoming unduly heated. The receptacle 8 is formed with a contracted bottom portion 9 fitting within the ring or annulus 1, as shown, and carrying a plurality of lugs 10, which pass through openings 11 in the horizontal portion 2, as shown in Fig. 2. The lugs 10 are provided with inclined upper faces, so that by turning the receptacle slightly with respect to the stand the lugs will be jammed underneath the. portion 2 of the annulus 1 (see dotted lines Fig 2), so as to lock the receptacle 8 firmly in place upon the stand, as will be understood! Ordinarily thesreceptacle 8 is provided with handles 12 for lifting the same, and by means of which the entire machine may be' transported.

.So much ofthe device as has been'described isnot claimed herein, but forms the subject-matter of. the parent application Serial No. 141,260, filed January 31st, 1903.

The rece tacle 8 is provided with a valved nozzle 13 or drawing off its contents; The upper end of the'receptacle 8 receives the metal coffee-holder 14 having a foraminated bottom 15 and a rim 16 at its top. Rising from the center of the bottom 15 is a sleeve 17 provided at its top with two or more arms 18 carryin the deflector 19. This deflectoris preferab y formed with a-conical depression 20in its. center, so as to more efi'ectively s read the boiling water and prevent it from ropping back into the central tube. This 1 central tube 21 is entirely open at the top and passes through a fiat funnel-shaped hollow bod 22 resting upon the bottom of the rece tac e 8.

ater enters the space inclosed by the funnel-shaped body 22 through a tube 23 at one side of the central tube. The central tube 21 extends above the top of the sleeve 17 and is provided with a shoulder 24 which rests against the bottom of the coffee-holder, so as to hold the body 22 in position and at the same time prevent the water from flowingeinto the receptacle between the central t u :andsl'eeve. The glass globe 25 is of the form shown, and at its bottom is-supported by the coffee-holder, but it is entirely separable and removable therefrom, instead 0 bein permanently, connected thereto, as is usua with devices of the typ I eat present on the market. The glass glo e 25 is provided with a metallic cover 26 having a In operation, the glass globe 25 is first re-' handle 27.

moved, and then the cofli'ee-holder is ele- .vated ',-ca rrying the sleeve 17 and deflector 19 VYIChit and leaving the funnel 22 and.

central tube the receptacle. Water is now introduced into the receptacle and the tity of coffee. The holdei 14 is now replaced in position, as is also the glass globe 25. The lam 6 is now lighted and quickly results in the oiling of the water in the receptacle. The boiling water at the bottom of the receptacle will be projectedupwards through the central tube in a series of rapidl recurring pulsations and will' be distri uated uniformly over the coffee in the holder by the deflector l9. lVater of. a slightly lower temperature circulates down- .wards through the tube 23 into the space inclosed by the funnel, as will be understood. The boiling water deposited on the coflee will slowly ,percolate through .the same, so

"ordinary leaching operation. 'The operation is continued until the extract is suificiently concentrated, whereupon the resulting bever- The broad invention herein disclosed relating to the locking of the receptacle to the stand, and the providing of an air space between the stand and the receptacle, and the details of such lock and the means for providing the'air space, are not claimed herein, but are claimed in applicants application for patent Serial No. 141,260, filed January 31st, 1903. I

Having now described our invention, what we claim as new and desire to secure by Let ters Patent is, as follows a A cofiee machine having a liquid receptacle with an open mouth and an-unrestricted body portion, there being noportion of the body of less diameter than the mouth, a perreceptacle and a foraminous coffee holder through which the percolating. device extends, the said parts being separablefrom one another, leaving the entire interiorjof the receptacle clear for cleaning.

this 17th day ofOctober 1908.

- I SIG-MUND STERNAU.

' JNO. P. STEPPE.

LIONEL STRAS SBURGER. 1 Witnesses:

THOS. F. BABY,

- M. I. HIOKEY.

age is removed through the valved nozzle 13..

This specification signed and witnessed holder 13L supplied with the 'iecessary quanas-to extractthe soluble constituents by an colating device resting on the bottom of the" resting in the mouth of the receptaclefandi 

